Sollicitatievraag bij Smoothstack
In SQL, explain the difference between an inner join and an outer join?
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Anoniem
5 feb 2021
In SQL, a join is used to compare and combine — literally join — and return specific rows of data from two or more tables in a database. An inner join finds and returns matching data from tables, while an outer join finds and returns matching data and some dissimilar data from tables.